Shelf cart



FIG. 1 is a top right front perspective view of a shelf cart showing our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a left side elevational view thereof; the opposite side being a mirror image; and,

FIG. 5 is a front elevational view thereof; the rear elevational view being a mirror image. 

The ornamental design for a shelf cart, as shown and described. 